February 22, 2022
A New Perspective for Metal Halide Perovskites: Ionic Octahedron Network (IONs)
Metal halide perovskites have been extensively studied as emergent semiconductor materials with their remarkable optoelectronic properties and wide applications in solar cells, light-emitting diodes, photocatalysts, radiation detectors, etc. The metal halide ionic octahedron, [MX6]n- (M = metal cation, X = halide anion), is considered to be the fundamental building block and functional unit of metal halide perovskites. By representing the metal halide ionic octahedron in halide perovskites as a super ion/atom, the halide perovskite can be described as an extended ionic octahedron network (ION) charge balanced by selected cations. This new perspective of halide perovskites based on ION enables the prediction of different packing and connectivity of the metal halide octahedra based on different solid-state lattices.Jianbo Jin received his B.S. in Chemistry from the University of Science and Technology of China (USTC) in 2018. He is currently a Ph.D. Candidate in Prof. Peidong Yang’s group at the University of California, Berkeley.